PCISSetUp

sets up the PC_IS portion of PCNN and PCBDDC preconditioner context as part of their setup process

Synopsis

#include "petscpc.h" 
PetscErrorCode PCISSetUp(PC pc, PetscBool computematrices, PetscBool computesolvers)

Input Parameters

• pc - the PC object, must be of type PCNN or PCBDDC

• computematrices - Extract the blocks A_II, A_BI, A_IB and A_BB from the matrix

• computesolvers - Create the KSP for the local Dirichlet and Neumann problems

See Also

KSP: Linear System Solvers, PCBDDC, PCNN, PCISSetUseStiffnessScaling(), PCISSetSubdomainDiagonalScaling(), PCISScatterArrayNToVecB(), PCISSetSubdomainScalingFactor(), PCISReset(), PCISApplySchur(), PCISApplyInvSchur()

Level

advanced

Location

src/ksp/pc/impls/is/pcis.c

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Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages